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Graco 312350K - page 1
312350K Instructions, Repair and Parts Dyna-Star ® HYDRAULIC RECIPROCATOR AND PUMP - Used for dispensing lubricating fluids only - 10:1 Ratio Universal Pump and Reciprocator 600 psi (4.1 MPa, 41 bar) Maximum Hydraulic In put Pressure 7500 psi ( 51 MPa, 517 bar) Maximum F luid Outlet Pr essure Model 247540: Pump, 60 lb Auto matic Lube Pump Module L ...
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Graco 312350K - page 2
Warnings 2 312350K Warnings The following warnings are fo r the setup, use, grounding, mainte nance, and repair of this equip ment. The exclama- tion point symbol alerts you to a genera l warning and the ha zard symbols refer to p rocedure-specific ri sks. When these symbols appear in the body of this manu al or on warn ing labels, refer back to th ...
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Graco 312350K - page 3
Warnings 312350K 3 + SKIN INJECTION HAZARD High-pressure fluid from dispensing device, hose leaks, or ruptured components will pierce skin. This may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment. • Do not point dispensing device at an yone or at any part of the body. • Do not pu ...
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Graco 312350K - page 4
Installation 4 312350K Installation Pump Accessories NOTE: The re ference letter s in the following de scrip- tions, refer to the refe rence letters used in F IG . 2, page 6. Follower Plate (A): Place follower plate on grease and rotate while pressing firmly to level ma terial. Order part number 247700 for 60# and 90# automatic lube pump modules; 2 ...
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Graco 312350K - page 5
Installation 312350K 5 Grounding • Pump: Order Grounding Wire and Cla mp Kit, Part No. 222011. See Grounding the Pump and F IG . 1, • Hydraulic Hoses and Fluid Outl et Hoses: Use electrically conductive hoses only. • Hydraulic Power Supply: Follow manufac- turer’s reco mmendations . • Flushing Pails: When flushing, onl y use metal, ground ...
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Graco 312350K - page 6
Installation 6 312350K Typical Installation The installation shown in F IG . 2 is only a guide for selecting and in stalling system components and ac cessories. Some of the equipment is required, as not ed in the key. For assistance in desi gning a system to suit your need s, con- tact your Graco distributor. Mount pump securely so it cann ot move ...
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Graco 312350K - page 7
Operation 312350K 7 Operation Before Starting Pump • Check hydraulic fluid level in hydr aulic power supply before each use. Add fluid as necessary to fill the lines. • Flush pump before using it for the first time to remove the light oil that was left in after factory test- ing to prot ect pump fr om corrosio n. Be sure s olvent used is compat ...
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Graco 312350K - page 8
Troubleshooting 8 312350K Troubleshooting Problem Cause Solution Pump does not run. Closed dispense valve. Pump only runs with valve open. Pressure too low. Increase supply pressure using a pressure ad justing valve . Insufficient hydraulic fluid supply. C heck hydra ulic supp ly. Adjust to a maximum of 3 gpm (11 lpm) flow. Clogged fluid outlet lin ...
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Graco 312350K - page 9
Service 312350K 9 Service NOTE: The refere nce letters use d in the following Ser- vice instructions re fer to the Typical In stallation illustra- tion provided on page 6. The reference numbe rs used in the following Service instructions refer to the Parts pag es beginning on page 23. Pump Leaks at the Fluid Fittings Tighten fittings (1, 5, 60; F I ...
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Graco 312350K - page 10
Service 10 312350K 7. Use a strap wrench on spacer tube (114) to unscrew it out of the pump adapter ( 8) and slide it down as far as it will go (F IG . 5). 8. Pull displacement rod (35) down as far as it will go. Remove pin (204) (F IG . 5). 9. Unscrew connecting rod (107 ) from displacement rod (35) (F IG . 5). 10. Clamp recipr ocator in vise. Rep ...
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Graco 312350K - page 11
Service 312350K 11 4. Remove retainer nut (11) and seal (44) from top of pump adap ter (8). 5. Remove four capscrews (4 6) and washers (52) from bottom of motor housing (43) and r emove motor housing from bottom cylinder ca p (32). 6. Loosen n ut (45a) on bo th ends of flui d tube (45) (F IG . 9). 7. Use a wren ch to loosen elbow (1) and te e (60). ...
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Graco 312350K - page 12
Service 12 312350K 8. Check o-rings (1a and 60a) on fittin gs (1 and 60) and replace them if they are wor n or damaged. 9. Remove capscr ew (3), n ut (36) and lockwasher s (37). Remove the reciprocator cap plate (30). 10. Gently tap on bo ttom cyli nder cap (32) to loosen cyl- inder cap from cylinder ( 25) using a rubber or p lastic mallet. NOTE: I ...
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Graco 312350K - page 13
Service 312350K 13 3. Install seal (44) on retain er nut (11). Install retainer nut in pump adap ter (8) (F IG . 14). Torque retainer nut to 54 to 56 ft -lb s (73-75 N.m ). 4. Slide bottom cylinder ca p (32) onto the cylinder (25 ) ensuring the tie rods (38) g o through their respec- tive holes in the top cylinder cap (31). NOTE: When attaching the ...
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Graco 312350K - page 14
Reciprocator Repair 14 312350K Reciprocator Repair • Clean and inspect all parts for wear or damage . Replace worn parts as needed. For best results, always replace all the o-r ings and seals when you disassemb le the pump. Repair Kit 247455 is avail- able. Parts includ ed in the kit are marked with an asterisk, for example (23*), in the text and ...
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Graco 312350K - page 15
Reciprocator Repair 312350K 15 5. Place bottom cap (3 2) in vise. Remove four cap- screws (46) and lockwas hers (52 ). 6. Pull adapter (43) off bottom cap (3 2). Inspect seals. If needed, replace seals. See Replacing Throat Seal Disassembly instruct ions o n page 10 . 7. Remove capscr ew (3), nuts (36) and lockwashers (37) on top of reciproc ator. ...
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Graco 312350K - page 16
Reciprocator Repair 16 312350K 12. Secure hex end of d isplacement rod (34) in a vise. Use a spanner wrench (sw) in pin h oles of the piston (22) to remove the piston from th e displacement rod. 13. Visually inspect the spring (21). If there is wear or damage, remove nut (18) , spring (21) and retaine rs (20) from the trip rod (12) (F IG . 22). Rea ...
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Graco 312350K - page 17
Reciprocator Repair 312350K 17 9. Use a spanner wr ench to screw piston (22) onto displacement r od (34). Torque to 40 to 48 ft-l b (54 to 65 N.m). 10. Lay Assemblies A and B (F IG . 24) on work bench . 11. Slide Assembly B in into ce nter of tool (D), Part No. 189305. Align upper dete nt holes (C) of yoke (9) with center line of tool (D) (F IG . 2 ...
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Graco 312350K - page 18
Reciprocator Repair 18 312350K 17. If tie rods (38) were re moved, reinstall them with short threa ded end u p. The other end should be screwed about 9/16” into bottom cylinder cap (32). NOTE: When reinstalling cylinder (25), be sure port in top cylinder cap (31) and port in the bo ttom cylinder cap (32) are in line with each other. Be sure o-rin ...
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Graco 312350K - page 19
Reciprocator Repair 312350K 19 Reassembly 1. Clean all the parts in a compatible solvent and inspect them for wear or d amage. Use all parts in the repair kit, replace other parts as necessary. 2. Generously lubricate all parts with ligh t, water-resis- tant grease. 3. Install upper ball (106 ), retaining washer (103) and seal (104), with lips faci ...
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Graco 312350K - page 20
Reciprocator Repair 20 312350K 4. Screw connectin g rod (107) into displa cement rod (35) until holes align. Install cotter pin (204) through holes. 5. Apply thread lubrican t to spacer tube (114) and thread into pump adapter (8). Use a 7/8 inch crow foot wrench on retainer se al (113). torqu e to 45-55 ft-lb (61-75 N.m) (F IG . 27). 6. Use a strap ...
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Graco 312350K - page 21
Reciprocator Repair 312350K 21 Displacement Pump Parts See page 22. Model 247540: 60# Pump Module Length Model 247443: 120# Drum Length Model 247450: 400# Drum Length † These parts are included in Kit 241623 (purchase sepa- rately). Ref No. Part No. Description Qty 102 19618 4 PISTON, 50:1 1 103 19618 5 WASHER, retainer 1 104† 114171 PACKING, u ...
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Graco 312350K - page 22
Reciprocator Repair 22 312350K F IG . 32 117 116 108 113 111 † 112 † 109 102 106 † 104 † 103 110 † 106 † 114 107 Assembled / Cutaway View Using nut (113), torque the pump cylinder 109 to the ex tension tube (114) at 45 to 55 ft-lb (61 to 75 N.m). 1 Torque the shovel rod (108) to the piston (102) at 25 to 30 ft-lb (34 to 41 N.m). 3 Torqu ...
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Graco 312350K - page 23
Reciprocator Parts 312350K 23 Reciprocator Parts F IG . 33 36 37 3 39 2 30 60 4 5 61 66 60a 5a 45 29 9 7 6 51 12 1 13 25 40 13 14 32 34 38 18 20 21 20 23 17 49 22 24 58 26 1a 43 16 35 44 8 28 27 15 46 52 11 19 31 4 5 3 6 5 5 1 6 6 2 Torque to 170-180 in-lbs (19-20 N.m) 1 Torque to 42-45 in-lbs (4-5 N.m). 2 Torque to 54-56 ft-lbs (73-76 N. m). 3 Tor ...
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Graco 312350K - page 24
Reciprocator Parts 24 312350K Reciprocator Parts Replacement Danger an d Warning label s, tags, and ca rds are available at no cost. * These parts and items 202 on page 25 are included in Kit 247455 (purchase sepa rately). † These parts are included in Kit 241623 (purchase sepa- rately). Assembly Tool 189305 required for repairing the recipro ...
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Graco 312350K - page 25
Pump Parts (F IG . 34) 312350K 25 Pump Parts (F IG . 34) Model 247540: 60# Pump Module Length Model 247443: 120# Drum Length Model 247450400# Drum Length Replacement Danger an d Warning labels, tags, and cards are available at no cost. * These parts are included in Kit 247455 ( purchase separately). See page 23 for other pa rts included in this ...
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Graco 312350K - page 26
Technica l Data 26 312350K Technical Data Typical Fluid Outlet Pressure Dyna-Star Pu mp US Metric Max grease output pressure 7500 psi 51 MPa, 517 bar Max hydraulic fluid input pressure 600 psi 4.1 MPa, 41 bar Max hydraulic fluid input volume 3 gpm, 60 cpm 11.7 lpm, 60 cpm Hydraulic fluid consumption rat e 6.5 ounces per cycle or 1 gallon per 19.5 c ...
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Graco 312350K - page 27
Technical Data 312350K 27 Dimensions and Mounting Hole Layout 1/8 npt throat seal weep port 3/4” - 16 JIC 37° flare (m) 1/2 npt(f) fluid outlet 3/4 npt Hydraulic Outlet 14.75 in. (375 mm) 41.5 in. (1054 mm) Model 247443 48.5 in. (1232 mm) Model 247450 3.5 (88.9 mm) minimum diameter clearance hole 3.536 in. (90.424 mm) 3.536 in. (90.424 mm) clear ...
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Graco 312350K - page 28
Graco Standard Warra nty 28 312350K Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from de fects in material and workmanship on the date of sale to the original purc haser for use. With the except ion of any special, extended, or limit ed warranty publi ...
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